The models affected are 2005 through 2009 Legacys and Outbacks, 2008 through 2011 Imprezas, 2008 through 2014 Impreza WRX/STIs, and 2009 through 2013 Foresters.

Subaru says it discovered the potential problems in its own testing. Brake lines could perforate after exposure to seven or more winter driving seasons. In a letter to the National Highway Traffic Safety Administration, the automaker says the perforations could cause brake fluid to leak and that in turn could cause the “driver to misjudge the amount of brake pedal travel required to achieve the desired stopping distance.”

Subaru of America spokesman Michael McHale told CNNMoney, “No accidents or injuries have resulted due to the operation of the vehicles.”

editor’s note: Vehicle owners can get more information from Subaru by calling 1-800-782-2883 or from the NHTSA Vehicle Safety Hotline at 1-888-327-4236 or online at www.safercar.gov.